This time he had not bothered from binding their emotions and exerting complete control over them. Which hinders the edo tensei. This time around he didn't do this, and certainly didn't have time to place the kunai with the binding seal in them before Tobirama flipped his shit.
So yeah, Tobirama was going to break out if it wasn't for the Zetsu clones. A new, creative way to control the edo's and have them at nearly full power.
So yeah, Tobirama was going to break out if it wasn't for the Zetsu clones. A new, creative way to control the edo's and have them at nearly full power.